- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69026 > MC68HC05CJ4FB (FREESCALE SEMICONDUCTOR INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44 PDF資料下載
參數(shù)資料
| 型號： | MC68HC05CJ4FB |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁數(shù)： | 91/114頁 |
| 文件大小： | 4047K |
| 代理商： | MC68HC05CJ4FB |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁當(dāng)前第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁
GENERAL RELEASE SPECIFICATION
TIMER 1
MC68HC(7)05CJ4
11-2
Rev. 2.1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Figure 11-1. Timer 1 Block Diagram
11.2 Counter
The key element in the programmable timer is a 16-bit, free-running counter or
counter register, preceded by a prescaler that divides the internal processor clock
by four. The prescaler gives the timer a resolution of 2.0 microseconds if the
internal bus clock is 2.0 MHz. The counter is incremented during the low portion of
the internal bus clock. Software can read the counter at anytime without affecting
its value.
The double-byte, free-running counter can be read from either of two locations,
$18:$19 (counter register) or $1A:$1B (counter alternate register). A read from only
the least significant byte (LSB) of the free-running counter ($19, $1B) receives the
count value at the time of the read. If a read of the free-running counter or counter
alternate register first addresses the most significant byte (MSB) ($18, $1A), the
LSB ($19, $1B) is transferred to a buffer. This buffer value remains fixed after the
TCAP
EDGE
SELECT/
16-BIT COMPARATOR
OCRH
OCRL
16-BIT COUNTER
TCMP
÷ 4
DETECT
LOGIC
PIN
CONTROL
LOGIC
TRH
TRL
ICRH
ICRL
ICIE
TOIE
OCIE
IEDG
OLVL
ICF
OCF
TOF
TIMER OVERFLOW
INTERNAL
CLOCK
(XTAL
÷ 2)
INTERNAL
DATA BUS
TIMER
INTERRUPT
REQUEST
ATRL
ATRH
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC705CJ4FB | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP44 |
| MC68HC05E0FN | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQCC68 |
| MC68HC05E5P | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP28 |
| MC68HC05E5DW | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC05J1ACP | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05CT4FB | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05CT4FN | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05D9 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-bit microcomputer with PWM outputs and LED drive |
| MC68HC05E0 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit |
| MC68HC05E0FN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。